#pragma once
#include<iostream>
#include<stdarg.h>

#include"comm.hpp"
#define SIZE 1024

#define Info 0
#define Debug 1
#define Warning 2
#define Error 3
#define Fatal 4
#define LogFile "log.txt"

#define Screen 1
#define Onefile 2
#define Classfile 3

class Log{
public:
    Log(){
        printMethod=Screen;
        path="./log/";
    }
    std::string levelToString(int level)
    {
        switch(level)
        {
            case Info:
                return "Info";
            case Debug: 
                return "Debug";
            case Warning:
                return "Warning";
        }
    }

//日志等级 格式
    void logmessage(int level,char* format,...)
    {
        time_t t=time(nullptr);
        struct tm* ctime=localtime(&t);
        char leftbuffer[SIZE];
        snprintf(leftbuffer,sizeof(leftbuffer),"[%s][%d-%d-%d:%d:%d:%d]",levelToString(level).c_str(),\ctime->
            tm_year+1900,ctime->tm_mon+1,ctime->tm_mday,\
        ctime->tm_hour,ctime->tm_min,ctime->tm_sec);
        
        va_list s;
        va_start(s,format);
        char rightbuffer[SIZE];
        vsnprintf(rightbuffer,sizeof(rightbuffer),format,s);

        //格式：默认部分+自定义部分
        char logtxt[SIZE*2];
        snprintf(logtxt,sizeof(logtxt),"%s %s\n",leftbuffer,rightbuffer);

        printf("%s",logtxt);//暂时打印
    }
    void PrintLog(int level,const std::string& logtxt)
    {
        switch(printMethod)
        {
            case Screen:
                std::cout<<logtxt<<std::endl;
                break;
            case Onefile:
                printOneFile(LogFile,logtxt);
                break;
            case Classfile:
                printClassFile(level,logtxt);
                break;
            default:
                break;
        }
    }
    void printOneFile(const std::string& logname,const std::string& logtxt)
    {
        int fd=open(LogFile,O_WRONLY|O_CREAT|O_APPEND);
        if(fd<0)   return;
        write(fd,logtxt.c_str(),logtxt.size());
        close(fd);

    }
    void printClassFile(int level,const std::string& logtxt)
    {
        std::string filename=LogFile;
        filename+=".";
        filename+=levelToString(level);
        printOneFile(filename,logtxt);
    }
     void operator()(int level, const char *format, ...)
    {
        time_t t = time(nullptr);
        struct tm *ctime = localtime(&t);
        char leftbuffer[SIZE];
        snprintf(leftbuffer, sizeof(leftbuffer), "[%s][%d-%d-%d %d:%d:%d]", levelToString(level).c_str(),
                 ctime->tm_year + 1900, ctime->tm_mon + 1, ctime->tm_mday,
                 ctime->tm_hour, ctime->tm_min, ctime->tm_sec);

        va_list s;
        va_start(s, format);
        char rightbuffer[SIZE];
        vsnprintf(rightbuffer, sizeof(rightbuffer), format, s);
        va_end(s);

        char logtxt[SIZE*2];
        snprintf(logtxt,sizeof(logtxt),"%s%s",leftbuffer,rightbuffer);
        PrintLog(level,logtxt);
    }
private:
    int printMethod;//打印方式
    std::string path
};
// int sum(int n,...)
// {
//     va_list s;
//     va_start(s,n);
// }